Journal-bearing.



I PATENTED SEPT. 6, 1904. I Q G.H.GLAMERI .Y

JOURNAL BEARING. APPLICATION FILED MAR/10, 190a.

I N0 MODEL.

to resist end thrust and equivalent strains.

UNITED STATES I Patented September 6, 1904.

PATENT OFFICE. 1

JOURNAL-BEARING.

S1 13 CIFIGA'JJION forming part of Letters Patent No. 769,337, datedSeptember 6, 1904.

Application filed March 10, 1903.

To all whom it may concern;

Be it known that I, GUILLIAM H. CLA E a citizen of the United States,residing at Philadelphia, in the county of Philadelphia and State ofPennsylvania, haveinvented acertain new and useful Railway Axle-Bearing,of which the following is a specification.

The object of the present invention is to provide a very efficientrailway axle-bearing at an extremely low cost.

To this and other ends hereinafter set forth the invention, stated ingeneral terms, comprises a railway axle-bearing consisting of thecombination with a stiff metal back of a homogeneous self-fittingfilling possessed of a high melting-point and such as it is impossibleto melt out by temperature induced by friction of service and thebearing as a whole possessed of sufficient mechanical strength forresisting thrusts and the like; and the invention further comprises theimprovements to be presently described and-finally claimed.

The nature, characteristic features, and scope of my invention will bemore fully understood from the following description, taken inconnection with the accompanying drawings, forming part hereof, and inwhich Figure 1 is a perspective view of the filling. Fig. 2 is a similarview of the back, and Fig. 31isda sectional view showing the partsassemb e In the drawings the filling oconsists 'of' homogeneous metalpossessed of a high meltingpoint and of a quality which may bedesignated self-fitting in the sense that it is soft enough to adjustitself to the journal. At the same time its high melting-point removesall possible danger of its being' fused or otherwise forced out ofposition, Such a metal is not possessed of sufiicient mechanicalstrength a is the stiff back with which the filling c is combined andwhich imparts to the bearing the necessary resistance to end thrust andother strains and which need not be of antifriction metal and mayconsist of a comparatively inexpensive metal, as iron.

The railway-bearing as a whole is comparatively light and inexpensiveand consists of Serial No. 147.059. (No model.)

fitting, and of highmelting-point, but too weak to withstand the strainsand thrusts to which a railway-bearing is subjected, and the other ofwhich imparts the necessary strength for opposing the strains andthrusts.

As shown, the filling is formed with overhanging portions b, whichextend over the ends of the back and serve to take up the end or collarwear, and the complemental lugs e and recesses b constitute means forsecuring the parts to place; but these are details of construction whichare not of the essence of the invention. As an example of metal fromwhich to make the filling reference ismade to an alloy consisting,essentially, of copper and lead in the proportions of from thirty toseventy per cent. of copper and thirty to seventy per cent. of lead,although it may contain in addition impurities or a small quantity oftin or other elements which may be added to improve its homogeneity orcasting properties. Such an alloy possesses a high melting-pointabout1500 Fahrenhei t-and it is impossible to melt it out of arailway-bearing at a temperature induced by friction. Furthermore, it isso soft that it is self adjusting or fitting and may be put into servicewithout fear of heating. At the same time it exhibits agreatly-diminished rate of Wear. Iron or steel is an example of thematerial suitable for the stiff back, and it is possessed of suflicientstrength for resisting the thrusts and strains to which the bearing issubjected.

' It will be obvious to those skilled in the art to which my-inventionappertains that modifications may be made in detail without departingfrom the spirit thereof. Hence I do not limit myself to the preciseconstruction and arrangement of parts hereinabove set forth, andillustrated in the accompanying drawings; but,

Having thus described the nature and objects of my invention, what Iclaim as new, and desire to secure by Letters Patent, is

1. A railway axle-bearing consisting of the combination with a stiffmetal back of a homogeneous self-fitting filling possessed of ahighmelting-pointand such as it' is impossible to melt out by temperatureinduced by friction and the bearing as a whole having sufficientmechanical strength to resist thrusts and the like, substantially asdescribed.

2. A railway axle-bearing consisting of the combination with a stiffmetal back of a homogeneous self-fitting filling having a meltingpointabove 800 and such as it is impossible to melt out by temperatureinduced by friction and the bearing as a whole possessed of suflicientmechanical strength to resist thrusts, substantially as described.

3. A railway axle-bearing consisting of the combination with a stifi?metal back of a selffitting filling consisting of an alloy composedessentially of copper and lead in proportions of from thirty to seventyper cent. copper and thirty to seventy percent. lead, substantially asdescribed.

4. A railway axle-bearing consisting of the combination with a simplecasting consisting of a stiff metal back of a filling consisting of analloy composed of essentially copper and lead in proportions of thirtyto S( \"(/1'll1y])01 cent. copper and thirty to seventy per cent. lead,substantially as described.

In testimony whereof I. have hereunto signed my name in the presence oftwo subscribing witnesses.

GUILLIAM 11. OT A M ER.

\Vitnesses:

K. M. GrlLLIGAN, W. J. JACKSON.

